Injector.



No. 688,412.' l Fammi nec. lo, |901.

W. HAGUE.

INJECTOB. (Appnmim mea nulas, 1901.) (No Model.)l 2 Sheets-Sheet I.

I. o ||v|l| y .l III HMT"- .will

No. sa,4|2.

(Appliatio led Jan. 26, 1901.) (mi' model.)

2 sheets-sheet 2.

A ua' J7 6 257126 7 219 62 Jn-' 16 2f 23 ----uL, Zik y//// 20 17 I /f//fm TH: Nonms PETERS cn. PHoYamYHo, WASHINGTON, n. c.

l UNITED STATES PATENT OFFICE.

WALTER HAGUE, OF ALLEGHENY, PENNSYLVANIA, ASSIGN OR OF THREE- FOURTHS TO WESLEY S. GUFFEY, OF PITT'SBURG, PENNSYLVANIA, AND PAUL HARBLA, OF ALLEGHENY, PENNSYLVANIA.

INJECTo R.

AsrnoIFroAtr10N arming part ofretters Patent No. 688,412, @rated Deseret@ ,1 o, '19"oi. Applicationled January 26, 1901. Serial No. 445818. (No model.)

T0 all whom it may concern: Y

Be it known that I, WALTER HAGUE, a citi# zen of the United States of America, residing at Allegheny, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Injectors; and I do hereby declare the following to be a full, clear, and exact description thereof, reference being had to theaccompanying drawings, which form a part of this specification.

My invention relates to certain new and useful improvements in injectors, and has for one of its objects to provide a steam-jet tube which may be either fixed or movable, with a long projecting discharging end for projecting into the water-space in the first vacuumchamber for rthe purpose of obtainingan'increased steam condensing surface, thereby producing a much better vacuum, and thus using the steam more expansively by flowing into a more perfect vacuum, thus giving the steam an increased velocity and striking force by which sixty-ive per cent. additional .Water is driven through the same diameter combining-tube.

The invention further aims to provide a second water-inlet which may be located either on the top, bottom, or sides of the enlarged portion of the injector-casing for the purpose of admitting additional Water into said second vacuum-chamber and discharge-- tube, which water is admitted in such a position as will cause it to strike the combiningtube, thus preventing the said water from striking the primary Waterlj et at right angles and deiiecting it from its course. The second supply-Wateris about thirty-five per cent.

of the total amount put into the boiler, more or less, according to pressure of water in the second supply-pipe. There is also provided a discharge-tube having an enlarged internal diameter for thepurpose of reducing the friction of said Water entering therein.'

The inventionv has for another of'its objects to take Water in ythrough the second Watersupply pipe as hot as Water can be made when supplied under pressure; also, to utilize whatever pressure there may be inthe second water-supply pipe and to lift water where there is no pressure in said second supply-pipe; also, to use the injector as an ejector, and, further, to make it a never-failing starter at the first attempt and a never-break-l ing jet when started as long as there are supplied steam through thesteam-jet tube and cold Water through the first supply-pipe. All

of the above-mentioned objects are accomplished by this injector in actual use.

With the above and other objects in View the invention consists of the novel combination and arrangement of parts to be hereini after more fully described, and specifically pointed out in the claims.

In describing the invention in detail reference is made to the accompanying drawings,

- forming a part of this specifica tion,and Where in like numerals of reference indicate correi sponding parts throughout the several views, in whichl Figure 1 is a side elevation of my improved injector, showing the same in an operative position as it appears in actual use. Fig. 2 is a longitudinal sectional View of the injector.

Fig. 3 is an end sectional View taken on the Fig. 4 is a longitudinal line 3 3 of Fig. 1. View of the steam-jet tube. Fig. 5 is a similar view of the cone-shaped combining-tube. Fig. 6 is a like view of the discharge-tube. Fig. 7 is au end View thereof. Fig. 8 is an end View of the pinion. Fig. 9 is a top plan view of the collar-locking ring. Fig. l0 shows the oblong Water-inlet in the top of the injector, which communicates with the second vacuumchamber. Fig. 11 is an end sectional view through the injector at the" second vacuumchamber and Water-intake-on line X X of Fig. 1.

In the drawings the reference-numeral 1 indicates the steam-inlet to the injector 2.

3, Fig. 2, indicates the first vacuum-chamber. #iA indicates the second vacuum-chamber.

5, Fig. 1, represents the first water-supply pipe, connecting the tank 1 with the injector. f 6 indicates the second Water-supply pipe, connecting the tank 2/ with injector, said pipe having a valve 6 thereon.

The numeral 7 indicates a T-shaped pipe jector-casing at the steam-inlet 1 for the purbetween and communicating with the injector and check-valve 8. The reference-numeral 9 indicates a waste-pipe communicating with the said T-shaped pipe 7, the said waste-pipe 9 being provided with a waste-controlling valve 10. The injector proper is formed of a cylindrical outer casing having an enlarged central portion 11, said enlarged portion earrying a central partition 12, (see Fig. 2,) having formed therein a screw-threaded opening 13.

14 indicates a screw-threaded end of the inpose of coupling to a suitable supply-pipe.

15 indicates the opposite end of the injector coupled to the said T-shaped pipe 7.

16 represents the steam-jet tube, arranged in the injector-casing at the intake end, said jet-tube being provided with teeth 17, which are adapted to engage with the toothed pinion 18. This pinion is suitably secured in a casingv 19, which is formed upon the injector-casing. Said pinion-casing is provided with a cone-shaped opening 20 (see Fig. 3) to receive a cone-shaped pinion-stem 21, which is held in position by mea-ns of the collar 22 and the screw-threaded ring or jam-nut 23. The said steam-jet tube 16 (see Fig. 2) is provided with a converging interior opening 24 and an external tapering end 25, the latter beingadapted to operate and project into the converging receiving end 26 of the combining-tube 27. The combining-tube is rigidly secured by means of screw-threads 28, which are formed within the partition-Wall 12 of the central casing, said combiningtube have a coneshaped interior opening 29.

30 represents the discharge-tube, which is likewise provided with a converging receiving end 31, into which the discharging end of t-hecombining-tubeextends. This dischargetube is provided with exterior screw-threads 32, by which it is secured in the end ot' the injector-casing 15.

In operation when starting, the steam fromk the steam-jet tube, on its way through the combining-tube, discharge-tube, and Wastepipe into the atmosphere, drives the air fromA the first and second vacuum-chambers by friction therewith in passing through the. smallest parts of the combining and discharge tubes, thus producing a vacuum in both the tubes and vacuum-chambers. Then the cold water in the first water-supply pipe is driven by the atmospheric pressure into the combining-tube, where the steam and water come in contact with each other, the steamlbeingthereby rapidly condensed, thus producing a vacuum into which the incoming steam in the steam-jet tube expands up to its highest limit and fiows with a proportionately-greater velocity than it would fiow into the atmosphere with the same amount of pressure, and when the steam is thus transformed into water while moving at i such a high velocity the said water thus obtains an increased velocity, and consequently an increased striking force, and by its kinetic energy acts upon and mingles with the Water from the first supplypipe and drives it through the combining-tube, forming a Water-jet as it escapesinto and through the second vacuum-chamber. When water is admitted through the second supply-pipe into the second vacuum-chamber, it strikes the combining-tube and passes all around it and moves along the second vacuum-chamber to- Ward and into the discharge-tube, where it comes in contact with the water-jet and is moving in nearly the same direction. The said water-jet by its kinetic energy acts upon and mingles with the water from the second water-supply pipe and drives it through the discharge-tube and check-valve when the waste-valve is closed.

Having thus fully shown and described my invention, what I claim as new,.and desire to secure by Letters Patent, is-

1. An injector of the class described, comprising in combination a casing having a vacuum and water chamber formed near the intake end thereof, a steam-jet tube at said intake end, a second vacuum and Water-intake chamber in said casing. adjacent to and separated from said iirst chamber, a combiningtube extending from said first chamber into said second chamber to the receiving end of the discharge-tube, said discharge-tube having its smallest internal diameter aboutv twenty-one one-thousandths of an inch greater in diameter than the smallest internal diaineter of the combining-tube.

2. An injector of the class described, comprising in combination an injectorcasing having a vacuum and water-intake chamber formed at the intake end thereof with asteamjet tube having a long projecting endextending therein, a second vacuum and water-intake chamber formed in said casing adjacent to and separated from said first chamber, a combining tube extending from said first chamber into said second chamber to the receivin g end of the discl1arge-tube,said steamjet tube being of such,A length as to give an increased steam-condensing surface up to such limits atwhich the casingsurroundingthe discharge endof the steam-jet tube is raised to a temperature of about 100 Fahrenheit, said discharge-tube havingits smallest internal diameter. about twenty-one one-thousandths of an inch greaterindiameter than the smallest internal. diameter of the combining-tube.

In testimony whereof I have hereunto af- IOO IIO

fixed my signature in the presence of two'sub- 4 scribing witnesses.

WALTER HAGUE'.-

Vitnesscs:

JOHN GROETZINGER, II. BECKER. 

